Migration Watch UK says the rise in the numbers of Romanians and Bulgarians making their way to Great Britain will rise to 50,000 a year once restrictions on the types of work they can do are lifted.
This increase of just over a third in Romanian and Bulgarian workers in the UK over the past year is a sharp increase on the previous trend.
It suggests that still larger numbers will arrive next year when our labour market is fully open to them.
This is consistent with our central estimate that net migration from Romania and Bulgaria will run at about 50,000 a year for the next five years.
The government has refused to give a figure for how many workers from Romania and Bulgaria it expects to arrive in the UK.
More top news
Up to 13 people are reported to have died and dozen of others were injured after the coach crashed into a tractor trailer near Palm Springs.
The Birds of a Feather actress was eliminated in the dance-off after the judges voted to save model Daisy Lowe.
The party faces a new contest after its former leader resigned after just 18 days - and this time it's shaping up as a beefier fight.